Shuttle monitoring device, particularly for multiple-shuttle weaving machines
US4073319A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1976 |
| Grant date | Feb 14, 1978 |
| Priority date | — |
| Expiry date | Sep 22, 1996 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD03D51/40
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Each shuttle of a multiple-shuttle weaving machine is provided with at least one shuttle magnet. A drive unit acts upon each shuttle magnet to effect positive magnetic transport of the shuttle through the length of the shed, without physically contacting the shuttle. The shuttle monitoring device includes a magnetic-field-dependent resistor for each shuttle to be monitored. The magnetic-field-dependent resistor is moved in parallel to and in synchronism with the drive unit for the shuttle and moves in a region where the resistor is influenced by at least one pole of the shuttle magnet. A machine shut-off device is connected to the resistor and is operative for shutting off the drive units for the shuttles of the weaving machine in response to a resistance change of the magnetic-field-dependent resistor indicative of lack of proper shuttle movement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.